Trestle and bracket therefor



July 29, 1947. M. B, MOYER TRESTLE AND BRACKET THEREFbR Filed March 19, 1946 J0 J5 J8 J5 J0 Ill-E Walcolm BJ/foyew Patented July 29, 1947 UNITED STATES PATENT OFFICE TRESTLE AND BRACKET THEREFOR I Malcolm B. Moyer, Syracuse, N. Y. Application March 19, 1945, Serial No. 655,421

. 4 Claims.

The invention relates to trestles commonly used proved leg and stringer connecting means that it is not necessary to size the stringer and legs to any particular width and thickness, making it possible to use practically any material available on the job, even forms.

-A further object is to provide a simple and inexpensive stringer and leg connecting means which will require minimum care and time in trestle assembly, will be strong, safe and durable, will permit quick and easy disassembly for hauling from one job to another, and will allow reassembly with equal facility.

Figure 1 of the accompanying drawing is a fragmentary side elevation showing the invention.

Fig. 2 is a vertical section on line 22 of Fig. 1.

Fig. 3 is an inner side elevation of one of the stringer-and-leg-connecting brackets.

Fig. 4 is a vertical section on line 4-4 of Fig. 3.

Fig. 5 is a transverse section on line 5--5 of Fig. 4.

A preferred construction has been shown and will be specifically described but attention is invited to the possibility of making variations within the scope of the invention as claimed.

Duplicate metal bodies 6 are provided to connect each end of the trestle stringer l with the legs 8, and a description of one of said bodies will sufice. This body is preferably a stamping or forging and it includes a vertically elongated plate 9 which may well be of the general shape shown. This plate 9 has substantially vertical edge portions bent laterally in the same direction and providing it with two spaced substantially vertical flanges It, said flanges being of stepped form as seen in Figs. 2 and 4, providing each of said flanges with a relatively wide upper half H, with a relatively narrow lower half l2, and with a downwardly facing shoulder l3 at the juncture of said upper and lower halves. The free edges Id, of the upper halves II of the two flanges [0, are disposed in a single vertical plane fOr contact with one side of the stringer l; the free edges I5 of the lower halves l2 are disposed in a single inclined plane for contact with the outer side of the leg 8, said edges t5 being offset toward the body portion of the plate 9 from the edges l4; and the two shoulders I3 are disposed in a single substantially horizontal plane to seat material salvaged from concrete upon the upper end surface It of said leg 8. The upper end of plate 9 is provided with a laterally bent edgev l1 integrally joined to the upper flange .ly joined to the lower flange halves l3 and ter- ,minating inthe same plane with the edges l5 of these lower halves.

Bolt holes H! are formed through the upper portion of the plate 9 to receive bolts or the like '20 for clamping the flange halves ll against the stringer I; and other bolt holes 2! are formed through the lower portion of said plat 9 to receive bolts or the like 22 for securing the flange halves l2 against the leg -8. Preferably, the portion 23 of the plate 9, through which the bolt holes I9 are formed, is inwardly ofiset and disposed vertically for better contact with the bolt heads or nuts.

In a completed trestle constructed with the aid of the brackets =6, the lower edge 24 of the stringer 1 directly rests on the end surfaces It of the legs 8, and the outer portions of these end surfaces extend outwardly from said stringer l and directly abut the shoulders I 3, providing a rigidly braced construction which will be strong and safe, and in which the principal load-supporting stresses are not transmitted from stringer to legs by portions of the brackets and their bolts, but by direct contact between said stringer and legs. The stringer and legs need not be of any particular width or thickness as they do not fit into or between any portions of either of the brackets; these brackets may be of relatively narrow width as they do not restrict the width of the legs, and the latter maybe of any width available, as long as they are somewhat wider than said brackets for solid contact therewith.

From the foregoing and the accompanying drawing, it will be seen that novel and advantageous construction has been provided for carrying out the objects of the invention, and while preferences have been shown and described, attention is again invited to the possibility of making variations, within the scope of the invention as claimed.

I claim: 7

1. A trestle bracket comprising a one-piece body having an upper portion to lie against one vertical side of a trestle stringer, a lower portion to lie against the outer side of a trestle leg, and bolt holes through said upper and lower portions; the inner side of said one-piece body being of stepped form, providing it with an upper stringerabutting surface disposed in a vertical plane, with a lower inclined leg-abutting surface offset toward the outer side of said body from said stringer-abutting surface, and with a downwardly facing shoulder at the juncture of said upper and lower surfaces to seat upon the upper end of the trestle leg, said lower leg-abutting surface extending entirely to the vertical edges of said body to permit use of the bracket with a leg having greater width than said body.

2. A trestle bracket comprising a substantially upright plate having bolt holes through its upper and lower portions, said plate having substantially vertical edge portions bent laterally in the same direction and providing said plate with two spaced substantially vertical flanges, the free edges of said flanges being of stepped form, providing each flange with an upper half having a vertical free edge, with a lower half having an inclined free edge ofiset toward the body portion of the plate from said free edge of said upper half, and with a downwardly facing shoulder at the juncture of said upper and lower flange halves; the vertical edges of the two upper flange halves being disposed in a single plane for con tact with one side of a trestle stringer, the inclined edges of the two lower flange halves being disposed in a single plane for contact with the outer side of a trestle leg, the two shoulders of said flanges being disposed in a single substantially horizontal plane to seat upon the upper end of the trestle leg.

3. A structure as specified in claim 2; the upper end of said plate having a laterally bent edge integral with said upper flange halves and terminating in the same plane with said vertical free edges thereof; the lower end of said plate having a laterally bent edge integral with said lower flange halves and terminating in the same plane with said inclined free edges thereof.

4. In a trestle, a stringer having vertical sides, two downwardly diverging legs having upper end surfaces upon which the lower edge of said stringer directly rests, the outer portions of said .upper end surfaces extending outwardly from the vertical sides of said stringer, and two separate duplicate one-piece brackets, said one-piece brackets having upper portions bolted against opposite sides only of said stringer, lower portions bolted against the outer sides only of said legs, and shoulders directly seated upon said outwardly extending outer portions of said upper end surfaces of said legs.

MALCOLM B. MOYE'R.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 947,464 Vickers Jan. 25, 1910 FOREIGN PATENTS Number Country Date $0,101 Switzerland Aug. 16, 1915 

